Analysis of Key Fuel Properties Inside Combination Electronic unit Pump Fuel Pipeline

Because of high pressure fluctuations in Combination Electronic Unit Pump (CEUP) system during fuel injection cycles, physical properties of diesel fuel including density, acoustic wave speed and bulk modulus also vary. These physical properties of fuel have significant importance in predicting the fuel injection behavior and its optimization. A 1D viscous damped mathematical model of wave equation has been developed in MATLAB not only to simulate the pressure fluctuations in fuel pipeline at various operating conditions of diesel engine but also to determine and analyze the variations in these physical properties of diesel fuel.